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2929.90.50.40/O-Butyl N-Methyl-N-ethyl Phosphoramidofluoridate Salt/China

O-Butyl N-Methyl-N-ethyl Phosphoramidofluoridate Salt from China

The protonated salt form of O-butyl N-(methyl ethyl amino) phosphoramidofluoridate, explicitly covered by HTS 2929.90.50.40 including corresponding alkylated/protonated salts. Used in ionic organophosphorus catalysis.

Duty Rate — China → United States

44%

Rate breakdown

9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
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Import Tips

• Specify protonated/alkylated salt form in import documentation matching tariff language exactly

• Include counterion identification (e.g

• tetrafluoroborate) in chemical passport

• Monitor for hydrolysis—use inert atmosphere packaging for salt stability

O-Butyl N-Methyl-N-ethyl Phosphoramidofluoridate Salt from China — Import Duty Rate | HTS 2929.90.50.40